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复合土工膜不同锚固方式的力学特性对比研究

余敏林 沈长松 刘宾

三峡大学学报(自然科学版)2013,Vol.35Issue(1):43-46,4.
三峡大学学报(自然科学版)2013,Vol.35Issue(1):43-46,4.

复合土工膜不同锚固方式的力学特性对比研究

Comparative Research of Mechanical Characteristics of Different Anchoring Ways of Composite Geomembrane

余敏林 1沈长松 1刘宾2

作者信息

  • 1. 河海大学水利水电学院,南京 210098
  • 2. 辽宁省供水局,沈阳 110003
  • 折叠

摘要

Abstract

Composite geomembrane as a new type of impermeable structure used in rockfill dam with outstanding effect; but it is easy to produce the stress concentration in the geomembrane anchorage place and the end fixed effect appeared. Combined with a foreign engineering example,adopting the three-dimensional explicit finite difference method,the stress and deformation of different anchoring ways of composite geomembrane are calculated and analyzed by the commercial software fast Lagrangian analysis of continua in 3D (FLAC3D). The results show that the different anchoring ways of geomembarne have an effect on its stress; and the appropriate geomembrane ahchoring way should be used to improve its stress condition to reduce the end fixed effect in practical projects.

关键词

复合土工膜/应力应变/锚固/端部固定效应

Key words

composite geomembrane/stress-strain/anchoring/end fixed effect

分类

建筑与水利

引用本文复制引用

余敏林,沈长松,刘宾..复合土工膜不同锚固方式的力学特性对比研究[J].三峡大学学报(自然科学版),2013,35(1):43-46,4.

三峡大学学报(自然科学版)

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